This is a note to let you know that I've just added the patch titled
benet: fix return value check in be_lancer_xmit_workarounds()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
benet-fix-return-value-check-in-be_lancer_xmit_worka.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9b0401382acbca9fb60758d88d0c7cc788b8fb5a
Author: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
Date: Tue Jul 25 11:27:26 2023 +0800
benet: fix return value check in be_lancer_xmit_workarounds()
[ Upstream commit 5c85f7065718a949902b238a6abd8fc907c5d3e0 ]
in be_lancer_xmit_workarounds(), it should go to label 'tx_drop'
if an unexpected value is returned by pskb_trim().
Fixes: 93040ae5cc8d ("be2net: Fix to trim skb for padded vlan packets to workaround an ASIC Bug")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
Link: https://lore.kernel.org/r/20230725032726.15002-1-ruc_gongyuanjun@xxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index f1cce7636722e..a7a3e2ee06768 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1140,7 +1140,8 @@ static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter,
(lancer_chip(adapter) || BE3_chip(adapter) ||
skb_vlan_tag_present(skb)) && is_ipv4_pkt(skb)) {
ip = (struct iphdr *)ip_hdr(skb);
- pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
+ if (unlikely(pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len))))
+ goto tx_drop;
}
/* If vlan tag is already inlined in the packet, skip HW VLAN
